An Oncocytoma


pleomorphic adenoma
salivary gland

How to Cite

Din, S., Shin Hin, L., & Mustafa, W. M. (2020). An Oncocytoma: A cause for parotid swelling. Malaysian Journal of Oral Maxillofacial Surgery, 18(1), 38–43. Retrieved from


The parotid gland is the largest of all salivary glands and most commonly affected by benign tumours. We present a case of parotid swelling which was clinico- radiographically suspected to be either a pleomorphic adenoma or Warthin’s tumour which are the commonest tumours of salivary glands. Extracapsular dissection was performed under general anaesthesia. Histopathologically, the lesion was reported as oncocytoma. Oncocytoma, a glandular neoplasm composing large cells with bright eosinophilic granular cytoplasm with central round nuclei, is rarely suspected to be the cause for parotid swelling given the rarity of this entity.